package com.kevin.effective;

import java.util.Objects;

/**
 * @Description 5. 使用依赖注入取代硬连接资源
 * @Author Kevin
 * @Date: Created in  16:28 2019/12/13:
 * @Modified By:
 * @Email: tang.lx@topcheer.com
 */
public class Five {
    public static void main(String[] args) {

    }
}

class SpellChecker {
    public SpellChecker() {
//        Objects.requireNonNull();
    }
}
